Getting rid of a 12" PBG4 1.33ghz, but I seem to have misplaced the original startup discs. It is running OSX10.5.8 now and only has a cd drive. Its been pretty slow this past year, and I have been meaning to do a full erase and fresh install, but I wasn't really sure if 10.5 is the best OS for the machine. Should I try and track down a 10.4 cd to do a fresh install before I sell it? OR, how can I simply wipe the drive without messing with the OS - that way I can sell it with 10.5.8 and whoever buys it can do what they like. Thanks in advance!